﻿using System.Collections.Generic;

#if BEFORE_NET45
// Copyright (c) 2010-2017 SharpDX - Alexandre Mutel
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
namespace System.Reflection
{
    internal static class SharpDXTypeExtensions
    {
        public static Type GetTypeInfo(this Type type)
        {
            return type;
        }

        public static T GetCustomAttribute<T>(this Type type) where T : Attribute
        {
            var attrs = type.GetCustomAttributes(typeof(T), true);
            if(attrs.Length == 0)
            {
                return null;
            }
            return (T)attrs[0];
        }

        public static T GetCustomAttribute<T>(this MemberInfo memberInfo, bool inherited) where T : Attribute
        {
            var attrs = memberInfo.GetCustomAttributes(typeof(T), inherited);
            if (attrs.Length == 0)
            {
                return null;
            }
            return (T)attrs[0];
        }
        public static IEnumerable<T> GetCustomAttributes<T>(this MemberInfo memberInfo, bool inherited) where T : Attribute
        {
            var attrs = memberInfo.GetCustomAttributes(typeof(T), inherited);
            foreach(var attr in attrs)
            {
                yield return (T)attr;
            }
        }
    }
}
#endif